v1.4.0

1.4.0 (2026-04-01)

⚠ BREAKING CHANGES

• e2e: WP_BASE_URL changed from localhost:8889 to localhost:8888. Run wp-env destroy before starting with the new configuration.
• settings: UI constructor signature changed from (Loader, Engine, string, string) to (Engine, string, string).
• cache: Entry constructor now requires a $url parameter (2nd argument). The $debug property/parameter is replaced by $variant across Entry, Writer, Manager, and Hasher. State no longer carries debug_data.

Features

• cache: Store request URL and variant dimensions in cache entries (d334421)
• settings: Make schema defaults available to add-ons at plugin load (c899d3b)

Bug Fixes

• e2e: Checkout into lowercase directory for consistent plugin slug (9a554a0)
• release: Reset manifest to last published version (015ab7a)
• storage: Exclude expired keys from cache index count (dcc68ef)
• storage: Filter Redis hash fields to correctly identify flag fields (ee18c24)
• storage: Remove backward compat for pre-1.4.0 cache entries (6ab8e0a)
• storage: Respect per-entry custom TTL/grace in Redis EXPIRE (fd8ec58)
• tests: Eliminate connection warnings from Storage scheme tests (306f31d)

Build

• e2e: Migrate to wp-env 11 with lifecycle scripts (0220f95)

Performance Results

Loading 7.7x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	46ms	6ms	87% faster
Page Load (LCP)	102ms	60ms	41% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 27 → 0 (100% reduction)
• Response time range: 6ms-68ms (cached) vs 44ms-54ms (uncached)

Cache Generation (First Request)

• Total processing: 48.12ms
• Before template: 24.90ms
• Template rendering: 23.22ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 13
• Timestamp: 2026-04-01T17:18:15.541Z
• Commit: a553e70

Regression Analysis

• Status: PASS
• Performance improved: 7.63x -> 7.73x (+1.3%)
• Threshold: 10% slowdown triggers failure

v1.3.2

1.3.2 (2026-03-23)

Bug Fixes

• ui: Prevent asset enqueueing when admin bar is not showing (b9be14a)

Performance Results

Loading 8.5x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	42ms	5ms	88% faster
Page Load (LCP)	90ms	44ms	51% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-7ms (cached) vs 40ms-52ms (uncached)

Cache Generation (First Request)

• Total processing: 42.90ms
• Before template: 20.34ms
• Template rendering: 22.57ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 8
• Timestamp: 2026-03-23T08:29:22.098Z
• Commit: b8d69c0

Regression Analysis

• Status: PASS
• Performance stable: 8.63x -> 8.53x (-1.2%)
• Threshold: 10% slowdown triggers failure

v1.3.1

1.3.1 (2026-03-16)

Bug Fixes

• i18n: Defer UI config to init hook to prevent early textdomain loading (df51634)
• ui: Register hooks for UI initialization to ensure proper textdomain loading (208621d)

Performance Results

Loading 8.8x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	41ms	5ms	89% faster
Page Load (LCP)	88ms	60ms	32% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-56ms (cached) vs 39ms-52ms (uncached)

Cache Generation (First Request)

• Total processing: 40.13ms
• Before template: 19.44ms
• Template rendering: 20.70ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 13
• Timestamp: 2026-03-16T10:30:35.747Z
• Commit: 813701c

Regression Analysis

• Status: PASS
• Performance improved: 8.55x -> 8.79x (+2.7%)
• Threshold: 10% slowdown triggers failure

v1.3.0

1.3.0 (2026-03-15)

Features

• admin: Rebuild settings UI with MilliBase components (574145e)
• settings: Integrate MilliBase as the settings framework (83ba3fb)
• storage: Add TLS support via scheme prefix in MC_STORAGE_HOST (ac77698)

Bug Fixes

• e2e: Use dynamic slug in post deletion invalidation test (1dcc057)
• manager: Clearing by targets processes double prefixed flags in Multisite. (17971f3)

Performance Results

Loading 8.8x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	46ms	5ms	89% faster
Page Load (LCP)	92ms	56ms	39% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-61ms (cached) vs 45ms-52ms (uncached)

Cache Generation (First Request)

• Total processing: 48.40ms
• Before template: 24.88ms
• Template rendering: 23.53ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 16
• Timestamp: 2026-03-15T20:42:24.991Z
• Commit: 6edb09f

Regression Analysis

• Status: PASS
• Performance stable: 9.00x -> 8.75x (-2.8%)
• Threshold: 10% slowdown triggers failure

v1.2.0

1.2.0 (2026-03-02)

Features

• storage: Support Unix socket paths for Redis connections (78254d7)

Bug Fixes

• storage: Handle PredisException when retrieving Redis/Valkey config (098b67c)

Performance Results

Loading 9.3x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	50ms	5ms	89% faster
Page Load (LCP)	100ms	60ms	40% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 33 → 0 (100% reduction)
• Response time range: 5ms-63ms (cached) vs 47ms-66ms (uncached)

Cache Generation (First Request)

• Total processing: 54.16ms
• Before template: 27.62ms
• Template rendering: 26.55ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 10
• Timestamp: 2026-03-02T15:13:49.847Z
• Commit: d61f4b3

Regression Analysis

• Status: PASS
• Performance stable: 9.33x -> 9.29x (-0.5%)
• Threshold: 10% slowdown triggers failure

v1.1.0

1.1.0 (2026-02-21)

Features

• deps: Upgrade predis/predis from ^2.2 to ^3.0 (b84a8bd)

Bug Fixes

• release: Remove draft config so Release Please creates git tags (6d11112)
• ui: Replace removed warning icon with caution (3b8f686)

Performance Results

Loading 9.0x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	48ms	5ms	89% faster
Page Load (LCP)	92ms	60ms	35% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-64ms (cached) vs 46ms-56ms (uncached)

Cache Generation (First Request)

• Total processing: 47.82ms
• Before template: 23.40ms
• Template rendering: 24.42ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 12
• Timestamp: 2026-02-21T20:38:54.735Z
• Commit: db701b1

Regression Analysis

• Status: PASS
• Performance stable: 9.07x -> 9.00x (-0.7%)
• Threshold: 10% slowdown triggers failure

v1.0.2

1.0.2 (2026-02-16)

Bug Fixes

• Make check_cache_decision() public and remove Options::is_caching_allowed() (b713aed)

Performance Results

Loading 9.3x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	47ms	5ms	89% faster
Page Load (LCP)	96ms	64ms	33% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-62ms (cached) vs 45ms-55ms (uncached)

Cache Generation (First Request)

• Total processing: 47.87ms
• Before template: 22.81ms
• Template rendering: 25.06ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 17
• Timestamp: 2026-02-16T11:35:59.332Z
• Commit: 46e93d4

Regression Analysis

• Status: PASS
• Performance improved: 9.31x -> 9.32x (+0.1%)
• Threshold: 10% slowdown triggers failure

v1.0.1

1.0.1 (2026-02-15)

Bug Fixes

• ci: Use RELEASE_TOKEN for release-please to trigger PR workflows (2f8322e)
• Register action namespaces in Engine constructor (4a1ffb3)

Refactoring

• ci: Move E2E from PR trigger to release workflow gate (3c9de93)
• ci: Remove post-merge CI/E2E gates from release workflow (810055a)

Performance Results

Loading 9.1x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	46ms	5ms	89% faster
Page Load (LCP)	88ms	56ms	36% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-61ms (cached) vs 45ms-58ms (uncached)

Cache Generation (First Request)

• Total processing: 54.01ms
• Before template: 23.26ms
• Template rendering: 30.75ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 16
• Timestamp: 2026-02-15T11:55:03.979Z
• Commit: 1810dc2

Regression Analysis

• Status: PASS
• Performance improved: 9.10x -> 9.12x (+0.2%)
• Threshold: 10% slowdown triggers failure

v1.0.0

1.0.0 (2026-02-13)

Initial stable release of MilliCache — a full-page cache plugin for WordPress powered by Redis compatible servers.

Highlights

• In-Memory Full-Page Cache — Pages are served directly from memory before WordPress even initializes. No database queries.
• Flag-Based Invalidation — Tag cached pages with flags like post:123 or archive:category:5, then clear related entries with a single command. Built-in flags are assigned automatically; custom flags give you full control.
• Stale-While-Revalidate — Serve expired content while fresh content regenerates in the background. Prevents cache stampedes on high-traffic pages.
• Rules Engine — Define caching behavior with a fluent, chainable PHP API. Set TTL, grace periods, and exclusions per condition — all version-controllable.
• Multisite Native — Per-site cache isolation with network-wide management. Clear one site, a subset, or an entire network.
• Multiple Backends — Redis, ValKey, KeyDB, or Dragonfly. Any Redis-compatible server works out of the box.
• WP-CLI Integration — Commands for cache testing, status checks, diagnostics, and bulk operations. AI-agent friendly.
• Debug Headers & Browser Extension — X-MilliCache-* headers show cache status, flags, and keys. The companion browser extension makes debugging effortless.
• REST API — /millicache/v1/* endpoints for cache control, status checks, and settings — ideal for CI/CD pipelines and monitoring.
• Action & Filter Hooks — Full customization of caching behavior, flag assignment, and invalidation events.
• Smart Auto-Invalidation — Cache clears automatically when posts, menus, widgets, or theme settings change.
• Open Source — GPL-2.0+ licensed. No vendor lock-in.

Performance Results

Loading 9.1x faster with MilliCache!

Metric	Without Cache	With MilliCache	Improvement
Server Response (TTFB)	46ms	5ms	89% faster
Page Load (LCP)	96ms	56ms	42% faster

Server Response is the primary metric for page caching. It measures how fast the server delivers the HTML. MilliCache focuses on serving cached pages instantly, eliminating database queries and PHP processing.

Page Load includes frontend rendering time, which depends on themes, scripts, and assets. Content optimization is outside MilliCache's current scope.

Technical Details

Cache Efficiency

• Database queries: 30 → 0 (100% reduction)
• Response time range: 5ms-59ms (cached) vs 44ms-56ms (uncached)

Cache Generation (First Request)

• Total processing: 51.99ms
• Before template: 27.39ms
• Template rendering: 24.60ms

Test Configuration

• Iterations: 50 (3 warm-up runs discarded)
• Outliers removed: 11
• Timestamp: 2026-02-13T21:52:28.469Z
• Commit: 0301520

Regression Analysis

• Status: PASS
• Performance stable: 9.29x -> 9.11x (-1.9%)
• Threshold: 10% slowdown triggers failure